CVE-2026-28286
criticalpriority · attend · 50EPSS 0.004 · 37 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.5.2-beta3, the application enforces restrictions in the frontend/UI to prevent users from creating files or folders in internal OS paths. However, when interacting directly with the API, the restrictions are bypass-able. By sending a crafted request targeting paths like /etc, /usr, or other sensitive system directories, the API successfully creates files or directories in locations where normal users should have no write access. This indicates that the API does not properly validate the target path, allowing unauthorized operations on critical system directories. No known patch is publicly available.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.5–9.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://github.com/IceWhaleTech/ZimaOS/releasesPatchcnnvd
- https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-65mg-9gw5-vr7gcnnvd
- https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-65mg-9gw5-vr7genisa_euvd
- https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-65mg-9gw5-vr7gExploitMitigationVendor Advisorynvd
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